               :name "Foo"
               :convention_id con_uuid
               :preferred_slot_id nil
+              :preferred_day nil
               :event_count 1
               :event_type 1}
              (first (kc/select db/events (kc/where {:id event_uuid})))))

                     :convention_id str_con_uuid
                     :persons (-> [(str person_uuid) (str second_person)] sort vec)
                     :preferred_slot_id nil
                     :event_count 1
                     :event_type "single"}
              :status 200}

             :name "Foo"
             :persons [(str person_uuid)]
             :preferred_slot_id nil
             :preferred_day nil
             :event_count 1
             :event_type "single"}
            :status 200}
